Geothermal.contractors

Geothermal Eco Options, Inc. (GEO) is a dedicated geothermal ground loop installation company headquartered in Cresco, Iowa, with additional coverage based out of Decorah. Founded in 2011 by owners Larry Leliefeld and Frederic 'Reed' Carlson — who collectively bring over 60 years of prior construction industry experience — GEO focuses exclusively on the design, drilling, and installation of ground loop systems for geothermal heating and cooling. Services include closed-loop vertical drilling, horizontal ground loop installation, purge and flushing, and both residential and commercial geothermal system retrofits and new construction. GEO has completed projects throughout Iowa and neighboring states. The company employs Iowa DNR certified drillers, holds a State of Iowa licensed Plumbing and Mechanical Systems professional on staff, and its field personnel hold NATE certifications as ground source heat pump loop installers. GEO is an IGSHPA member organization classified as a Ground Loop Installer. Verified active operator per geo-inc.com + Howard County chamber (Bundle 3 audit 2026-05-27)